Well, while an attention getter, this is the tried and true method of curing olives. This excellent article gives the details.
We have two olive trees that provide us with enough product to cure, not enough for oil. Last winter’s storms caused major damage to both trees and we expected no crop this year but the remaining branches compensated and actually provided more than normal years.
Essentially, the olives are submersed in a lye solution for a day, rinsed repeated for several days, then put in brine for keeping. Using normal precautions (goggles and gloves), it is a very simple procedure and results are superb.
You may be able to source olives at your farmer’s markets or some friends have bought online.